small beer

noun2

1. •
   Beer with a low alcoholic content, usually between 0.5% and 2.8%.

   • It was then that the large footmen were too much employed at Clavering Park to be able to bring messages, or dally over the cup of small beer with the poor little maids at Fairoaks — 1848
2. •
   (UK, figurative) Something that is of relatively little importance.

   • The income from standard widgets is small beer compared to the income from the gold-plated ones.